Masurian Landscape Park (Polish: Mazurski Park Krajobrazowy) is a designated Polish Landscape Park protected area within Warmian-Masurian Voivodeship, in northern Poland. It is one of the largest landscape parks in Poland.

It was established in 1977, and is a Natura 2000 EU Special Protection Area.

The Landscape Park protects an area of 536.55 square kilometres (207.16 sq mi) in the Masurian Lake District.

The Park lies within Warmian-Masurian Voivodeship, in:

• Mrągowo County — Gmina Mikołajki, Gmina Mrągowo, and Gmina Piecki
• Pisz County — Gmina Pisz, Gmina Orzysz, and Gmina Ruciane-Nida
• Szczytno County — Gmina Świętajno

The Park contains the biggest Polish lake called Śniardwy, with an area of 114.16 km, together with lakes of Kaczerajno and Seksty. Other bigger lakes include Bełdany (9.41 km), Mokre (8.15 km), Łuknajno (6.92 km), Mikołajskie (4.98 km), Warnołty (4.65 km) and Zdrużno (2.52 km). There are also over 20 smaller dystrophic lakes in the Krutynia river basin.

Within the Landscape Park are 11 nature reserves, including that of Łuknajno Lake, a Ramsar site also designated by UNESCO as a biosphere reserve due to its unique bird habitat.

• Total area: 536.55 km
• Forested area: 290 km
• Water area (rivers and lakes): 180 km
• Protected area: 186.08 km
• Number of settlements: 29
• Number of permanent residents: approx. 4,800

• Landscape parks in Poland
• Special Protection Areas in Poland
• Masurian dialects
• Natura 2000 in Poland

• Rozporządzenie Nr 4 Wojewody Warmińsko-Mazurskiego z dnia 14 stycznia 2005 r. w sprawie Planu Ochrony Mazurskiego Parku Krajobrazowego